Doctor network changes hit hardest in the fall, when insurers finalize their 2027 contracts and providers announce they will not renew. A letter arrives saying your cardiologist, pediatrician, or oncologist will leave your plan's network, and the first question is whether you can switch plans right now. The honest answer in October 2026 is that federal rules do not treat a doctor leaving as a qualifying life event for a Marketplace Special Enrollment Period, but the calendar happens to be on your side. Medicare's Annual Election Period opens October 15, 2026, and Marketplace Open Enrollment opens November 1, 2026, so most people can switch within weeks. Employer plan members need to check their employer's own open enrollment dates. The No Surprises Act adds a second layer of protection called continuity of care, which can keep in-network pricing for up to 90 days when a provider you are actively seeing leaves. This page walks through which window applies to your coverage type, what to ask your plan to do today, and how to confirm a new plan really includes your doctor before you commit.
Cost is the reason this matters. Marketplace plans with HMO or EPO designs pay nothing for out-of-network visits except emergencies, and for 2026 the Marketplace out-of-pocket maximum is $10,600 for an individual and $21,200 for a family, a cap that generally covers in-network care only. Medicare Advantage HMO plans work the same way, with a 2026 in-network out-of-pocket ceiling of $9,250. Original Medicare has no network at all, which is why some people leave Medicare Advantage after a hospital system drops out. Medicaid and CHIP members have their own rights, including year-round enrollment and for-cause plan changes. Income decides much of the path, so the 2026 Federal Poverty Level matters: $15,960 for one person and $33,000 for a family of four in the 48 contiguous states and DC. Government sources used here include HealthCare.gov, CMS.gov, Medicare.gov, Medicaid.gov, and KFF Health News, and each deadline below should be confirmed on those sites or with your state exchange before you act.
7 Steps to Get Coverage
Common Mistakes That Cost People Thousands
Network changes cause costly errors because people assume rules that do not exist or miss ones that do. Five mistakes show up most often.
- Canceling your plan mid-year because a doctor left. A voluntary cancellation does not open a Marketplace SEP, and you may be left uninsured until the next Open Enrollment.
- Trusting the online provider directory alone. Directories can be months out of date, so call the doctor's billing office and ask about the exact 2027 plan name before you enroll.
- Skipping the continuity-of-care request. The 90-day transition is not automatic, so you must ask your plan in writing, ideally before the termination date.
- Waiting past December 15, 2026 for Marketplace coverage. A plan chosen after that date starts February 1, 2027, leaving a gap in January if your current plan ends December 31.
- Leaving Medicare Advantage for Original Medicare without checking Medigap rules. Outside a guaranteed-issue situation, most states let Medigap insurers review your health history, so ask before dropping your plan.
Continuity of Care: Up to 90 Days of In-Network Pricing in 2026
Continuity of care under the No Surprises Act lets a continuing care patient keep in-network cost-sharing with a terminated provider for up to 90 days. CMS defines continuing care patients as people undergoing treatment for a serious and complex condition, receiving institutional or inpatient care, scheduled for non-elective surgery, pregnant and receiving treatment, or terminally ill. Employer plans and individual market plans must offer the option, and plans must notify eligible members of their right to elect it. Election is not automatic: you generally apply through your plan's own process, and the provider must accept the plan's rate as payment in full during the transition. The 90 days run from your termination notice or until you no longer qualify, whichever comes first. Plans may deny the transition when a provider is removed for quality or fraud reasons. Medicare Advantage follows separate CMS rules and plans must give notice before terminating a provider, so ask your plan what transition options apply. Use this protection to bridge visits until a January 1, 2027 plan change takes effect.
Medicare Advantage Network Changes and the CMS Special Enrollment Period in 2026
Medicare Advantage members have one special path that Marketplace members lack. CMS can grant a Special Enrollment Period, usually about three months, when a plan makes a significant change to its provider network. CMS decides case by case, weighing how many members are affected, how much notice they received, the size of the service area, and the time of year. Members cannot request this SEP themselves; state insurance regulators and lawmakers typically ask CMS to act. KFF Health News reported in April 2025 that CMS granted these windows in at least 13 states over 15 months, including about 14,000 Humana members in Minnesota, while 46,000 Aetna and UnitedHealthcare members there were denied because their plans still had enough other providers. CMS proposed in November 2025 to let any affected enrollee switch, but the CY 2027 final rule issued in April 2026 did not finalize that change, so the case-by-case test still applies. Without an SEP, use the Annual Election Period (October 15 to December 7, 2026) or the Medicare Advantage Open Enrollment Period (January 1 to March 31, 2027). Original Medicare has no network at all.
Medicaid and CHIP Pivot: Changing Plans Year-Round in 2026
Medicaid is the only major program with no enrollment calendar, which makes it the fastest fix when income qualifies. Medicaid is income-gated at 138% of the Federal Poverty Level in the 40 expansion states plus DC: for 2026 that is $22,025 for a single person or $45,540 for a family of four. Federal managed care rules let Medicaid members change plans for cause at any time, and a doctor no longer available can count as cause. State programs go by different names: Medi-Cal in California, AHCCCS in Arizona, BadgerCare in Wisconsin, MassHealth in Massachusetts, TennCare in Tennessee, and HUSKY Health in Connecticut. Children qualify for CHIP at higher income levels, typically 200% to 300% FPL in 2026 depending on the state, and CHIP programs such as AllKids in Illinois and NJ FamilyCare in New Jersey also accept applications year-round. Apply at healthcare.gov or your state Medicaid agency. The 10 non-expansion states (Alabama, Florida, Georgia, Kansas, Mississippi, South Carolina, Tennessee, Texas, Wisconsin, Wyoming) have stricter adult limits, so check your state's 2026 rules before relying on Medicaid.
Why Each Document Matters When Your Doctor Leaves Your Network in 2026
The termination notice proves the date and reason your doctor leaves, and plans use it to decide whether a continuity-of-care request qualifies. A letter from your doctor documenting your diagnosis and treatment schedule is what moves a request from routine to approved. Your member ID card and plan name let the billing office of a prospective doctor check acceptance, while a recent pay stub or unemployment letter supports the 2026 income estimate for Marketplace subsidies and Medicaid. Form 1095-A from your current Marketplace plan matters at tax time because switching plans mid-year changes how premium tax credits reconcile on Form 8962. Keep copies of every call reference number, since plans sometimes lose requests and a reference number proves you asked before the termination date. Bring your Medicare card and Part A and Part B dates if you are changing a Medicare plan, because the Medicare Plan Finder and the plan's enrollment desk both use them to confirm eligibility and your start date.
Frequently Asked Questions
What is the enrollment window if my doctor leaves my network in 2026?
Your window depends on your coverage type, because a doctor leaving does not trigger a standard Special Enrollment Period. Medicare members can switch plans from October 15 through December 7, 2026, with coverage starting January 1, 2027. Marketplace Open Enrollment runs November 1, 2026 through January 15, 2027 on HealthCare.gov, and you must pick a plan by December 15, 2026 for a January 1, 2027 start. Medicare Advantage members get another switch from January 1 through March 31, 2027. Medicaid members can change plans for cause at any time. Employer plans follow your employer's open enrollment, so check with HR. Confirm exact dates with your state exchange, since some run later than January 15, 2027.
How do I document a doctor leaving my network for a plan change or continuity-of-care request?
Start with the termination or network-change notice from your plan, which shows the doctor's name and effective date. Add a letter from the doctor confirming your diagnosis, treatment schedule, and why continuing care matters. Submit both through your plan's continuity-of-care form, and log the date, representative name, and reference number of every call. For a Medicare Advantage Special Enrollment Period, you cannot apply yourself because CMS grants it to affected members when it finds a significant network change. In that case, the notice CMS requires your plan to send is your proof. Keep copies in case the plan loses the request.
What if I miss the switch window after my doctor leaves the network?
Missing the window means you stay in your current plan through 2027 unless another qualifying event or special enrollment period applies. You can keep seeing the doctor out of network, but HMO and EPO plans pay nothing outside the network except in emergencies, and PPO plans charge higher coinsurance plus possible balance billing. Medicare Advantage members still have the Open Enrollment Period from January 1 through March 31, 2027 for one switch. Medicaid and CHIP members have no deadline. Marketplace members who miss December 15, 2026 can still enroll through January 15, 2027, but coverage then starts February 1, 2027.
Can I get retroactive coverage or reimbursement after my doctor leaves the network?
Plan changes are not retroactive. A Medicare plan chosen by December 7, 2026 starts January 1, 2027, and a Marketplace plan chosen by December 15, 2026 starts the same day. Visits you already had before the termination date are paid at in-network rates, and the No Surprises Act continuity-of-care rule can extend in-network pricing for up to 90 days after your notice if you are a continuing care patient. Medicaid is the exception: many states cover medical bills incurred in the three months before the application month if you were eligible, so apply promptly if your income qualifies.
Does Medicare Advantage offer a Special Enrollment Period when a doctor leaves the network?
Medicare Advantage offers one only after CMS decides the network change is significant. CMS reviews how many members are affected, how much notice they received, the service area size, and the time of year, then may open an SEP of roughly three months. Members cannot request it. CMS proposed a broader rule for contract year 2027 that would let any affected enrollee switch, but the April 2026 final rule did not finalize it. If no SEP is granted, use the Annual Election Period from October 15 through December 7, 2026 or the Open Enrollment Period from January 1 through March 31, 2027.
Do I qualify for Medicaid if my doctor leaves and I need a new plan?
You qualify for Medicaid in the 40 expansion states plus DC if your 2026 household income is at or below 138% of the Federal Poverty Level. For 2026 that is $22,025 for one person, $29,863 for two, $37,702 for three, and $45,540 for four. Apply year-round at healthcare.gov or your state Medicaid agency, such as Medi-Cal in California or AHCCCS in Arizona. If you already have Medicaid, your managed care plan must let you change plans for cause, and a doctor who is no longer available can count as cause. The 10 non-expansion states have stricter adult limits.
What happens to my children's coverage if their pediatrician leaves the network?
Children's coverage continues, and you have several choices. Ask your plan for continuity of care if your child is in active treatment, since the 90-day transition covers continuing care patients. If your household income is below your state's CHIP limit, typically 200% to 300% of the Federal Poverty Level in 2026, your child can apply for CHIP or Medicaid at any time of year and pick a plan that includes the new pediatrician. Otherwise, add children to a new Marketplace or employer plan during Open Enrollment. Call the pediatrician's office to confirm which 2027 plans they accept before you choose.
Does COBRA let me change plans when my doctor leaves the network?
COBRA keeps the same plan and network as active employees, so a network change affects COBRA enrollees too. You may switch to a different option your former employer offers during its annual open enrollment. Dropping COBRA voluntarily outside Open Enrollment does not create a Marketplace Special Enrollment Period, so cancel only after a new plan is confirmed. COBRA costs 102% of the full premium, and for 2026 a typical individual plan runs $400 to $900 per month. Compare it with Marketplace plans during the November 1, 2026 to January 15, 2027 window, where premium tax credits often cut costs well below COBRA.
